IDG’s PC World Delivers Largest Bonus Over Rate Base

(San Francisco, CA; February 26, 1998) — In an analysis of ABC Fas-Fax Reports for the six-month periods ending June 30, 1997 and December 31, 1997, PC World delivered the largest bonus over rate base of any measured personal computer publication. The world's largest computer monthly, PC World demonstrated a solid 6.8% circulation growth from 1996 to 1997, and exceeded rate base by an average of 33,150 copies per issue.

Average Bonus Over Average Rate Base for 1997*

Rate Base Bonus Copies % Variance

PC WORLD 1,101,000 33,150 3.0%

PC Magazine 1,159,091 6,061 0.5%

PC/Computing 1,000,000 7,450 0.7%

Windows 800,000 5,731 0.7%

Windows Sources 400,000 1,461 0.4%

*Analysis by PC World using the ABC Fax-Fax Reports ending June 30, 1997 and December 31, 1997.

"Ultimately, it's PC World advertisers who profit from this news," commented Jeff Edman, Publisher of PC World. "By delivering almost five times more bonus than our nearest competitors, PC World simply delivers more value than other personal computer magazines."

With the highest cover price in its category, PC World also out-performed other measured personal computer publications on the newsstand. Bucking an industry trend toward declining newsstand sales, PC World averaged the most single copy sales of any measured personal computer publication and boosted average monthly single copy sales by more than 7.4% from 1996 to 1997.

Average Monthly Single Copy Sales*

Cover Price Jan.-Dec '97 Jan.-Dec. '96 % Change

PC WORLD $5.95 159,300 148,370 7.4%

PC Magazine $3.99 156,267 163,037 -4.2%

PC/Computing $4.99 154,027 155,222 -0.8%

Windows $3.99 113,566 127,899 -11.2%

Windows Sources $2.99 86,688 87,747 -1.2%

*Analysis by PC World using the ABC Fas-Fax Reports ending June 30, 1996,

December 31, 1996, June 30, 1997, and December 31, 1997.

"Our strength on the newsstand is a result of many factors," stated Shawne Burke Pecar, Vice President of Circulation for PC World. "Our compelling cover designs, award-winning editorial and timely product reviews, and excellent relationships with our distributors have all contributed to our success."

IDG's PC World is the world's largest monthly computer publication with a circulation rate base of 1,125,000. PC World and PC World Online (http://www.pcworld.com) are published by PC World Communications, Inc., a subsidiary of IDG, the world's leading IT media, research and exposition company. IDG publishes more than 285 computer magazines and newspapers and 500 book titles and offers online users the largest network of technology specific sites around the world through IDG.net (http://www.idg.net), which comprises more than 200 targeted Web sites in 52 countries. IDG is also a leading producer of 110 computer-related expositions worldwide, and provides IT market analysis through 49 offices in 41 countries worldwide. Company information is available at http://www.idg.com.